Hi Martin, On Wed, 25 Jan 2017, Martin Liška wrote: > Following patch documents DO loop changes which were done for upcoming > GCC 7.1.
thanks for putting this together. Index: htdocs/gcc-7/changes.html =================================================================== + <li> + DO loops with step equal to 1 or -1 generate faster code as they do not + have a loop preheader. New warning <code>-Wundefined-do-loop</code> + warns when a loop iterates either to <code>HUGE(i)</code> (with step equal + to 1), or to <code>-HUGE(i)</code> (with step equal to -1). Apart from + that the invalid behaviour can be caught during run-time of a program with + <code>-fcheck=do</code>: Can you makr up DO as <code>DO</code> since it is a keyword? "A new warning..." "behavior" (since we use American English, or it also would be programme ;-). "run time" (according to https://gcc.gnu.org/codingconventions.html ) +At line 8 of file /home/marxin/Programming/gcc/gcc/testsuite/gfortran.dg/do_check_12.f90 +Fortran runtime error: Loop iterates infinitely + </pre></blockquote> Here, can you shorten the filename to ".../gcc/testsuite/gfortran.dg/do_check_12.f90" ? This is fine with the changes above. Thanks, Gerald
